docs: def run():
      """
      Start the BaseHTTPServer and serve requests forever.
      """
      server_address = (args.listen_addr, args.listen_port)
      httpd = YHSM_VALServer(server_address, YHSM_VALRequestHandler)
      my_log_message(args, syslog.LOG_INFO, "Serving requests to 'http://%s:%s%s' (YubiHSM: '%s')" \
                         % (args.listen_addr, args.listen_port, args.serve_url, args.device))
      httpd.serve_forever()